Perovskite Materials for Light-Emitting Devices

As a type of material that possesses excellent optoelectronic properties (e.g. high photoluminescence quantum yield, high defect tolerance, and tunable light emission), in the past decade, metal-halide perovskites have been widely studied as emitters such as for light-emitting diodes (LEDs) and Lasing applications. Both the perovskite LEDs and lasing fields have made substantial progress and their device performances are already comparable to other well-developed lighting devices, reflecting perovskite-based devices have a great potential to be the next-generation lighting technology.

The perovskite lighting field is a comprehensive field involving material science, device and optical engineering, device physics and photophysics investigation, technology transfer, etc. Therefore, interdisciplinary and synergic efforts are highly required to promote perovskite light-emitting materials and devices from laboratory to commercialization.

Although the performances of perovskite light-emitting devices have skyrocketed nowadays, the field is still facing a series of issues that retard the further development of perovskite lighting, such as the insufficient device lifetime, the spectrum instability, the toxicity of lead, the achievement of high-quality blue and white perovskite light-emitting devices, etc. Besides, the understanding of perovskite lighting (both in material and device levels) is still not fully distinct, such as the transition of electrons between singlet and triplet states in perovskite, the charge/energy transfer and recombination processes in a working device, theoretical calculation on perovskite lighting properties, and optical modes control in perovskite lighting devices, etc.

Therefore, the goal of this research topic is to find some solutions for the aforementioned issues to contribute to higher-quality perovskite lighting materials and devices and inspire the field to ponder which direction the next shot should point to.

This Research Topic welcomes Original Research, Review, Mini Review and Perspective articles, including, but not limited to the following aspects:

• Perovskite lighting materials and devices with excellent performance or stability
• Degradation understanding of perovskite lighting materials and devices
• Non-toxic or less toxic perovskite lighting materials and devices
• Lighting-related microcosmic processes in perovskite materials and devices
• Lighting-related theoretical studies or predictions of perovskite materials and devices
• Any unique perspective towards perovskite lighting materials and devices

Keywords: Perovskite, Lighting materials, Light-emitting diodes, Lasing, Fundamental understanding

Important note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.